linux-kernel - [PATCH 0/2] NFSD: prevent integer overflows

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Message-ID: <332d1149-988e-4ece-8aef-1e3fb8bf8af4@moroto.mountain>
Date: Thu, 9 May 2024 13:47:36 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Trond Myklebust <Trond.Myklebust@...app.com>
Cc: Chuck Lever <chuck.lever@...cle.com>, Jeff Layton <jlayton@...nel.org>,
	Neil Brown <neilb@...e.de>, Olga Kornievskaia <kolga@...app.com>,
	Dai Ngo <Dai.Ngo@...cle.com>, Tom Talpey <tom@...pey.com>,
	Trond Myklebust <trond.myklebust@...merspace.com>,
	Anna Schumaker <anna@...nel.org>, linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 0/2] NFSD: prevent integer overflows

There is a potential for integer overflows in svcxdr_dupstr()
and svcxdr_tmpalloc() and XDR_QUADLEN().  I believe the fixing the
overflow in XDR_QUADLEN() would fix the bug, but it's safer to be
more thourough.

Dan Carpenter (2):
  SUNRPC: prevent integer overflow in XDR_QUADLEN()
  NFSD: harden svcxdr_dupstr() and svcxdr_tmpalloc() against integer
    overflows

 fs/nfsd/nfs4xdr.c          | 12 ++++++------
 include/linux/sunrpc/xdr.h |  3 ++-
 2 files changed, 8 insertions(+), 7 deletions(-)

-- 
2.43.0